CN210964336U

CN210964336U - Sack cleaner and fossil fragments thereof

Info

Publication number: CN210964336U
Application number: CN201921864565.9U
Authority: CN
Inventors: 汪鎏; 潘峰; 朱晨军
Original assignee: Keda Clean Energy Co Ltd
Current assignee: Keda Clean Energy Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-10
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a sack cleaner and fossil fragments thereof belongs to the industrial dust removal field. Aiming at providing a bag-type dust collector and a keel thereof, aiming at the problem that the contact area of a support ring and a filter bag is large or the sharp vertex is easy to cause the abrasion of the filter bag in the prior art. The bag-type dust collector consists of a keel and a filter bag sleeved on the keel, wherein the keel comprises a support ring, longitudinal support steel bars, a top cover and a bottom plate; the support ring is of an annular structure, is in a corrugated shape with the inner arc and the outer arc bent alternately along the circumferential direction, and is provided with a plurality of outer arc sections and a plurality of inner arc sections, and adjacent outer arc sections and inner arc sections are connected in a tangent mode. The utility model discloses the fold-shaped structure of support ring in sack cleaner fossil fragments improves self and supports intensity and elastic while, can effectively reduce the wearing and tearing of filter bag, increase of service life.

Description

Sack cleaner and fossil fragments thereof

Technical Field

The utility model belongs to the industrial dust removal field, more specifically say, relate to a sack cleaner and fossil fragments thereof.

Background

The keel of the bag-type dust collector comprises a top cover and a bottom plate, a plurality of longitudinal supporting steel bars are arranged between the top cover and the bottom plate, a plurality of supporting rings are arranged on the longitudinal supporting steel bars at certain intervals, and the whole keel is wrapped by the filter bag. The cross section of the traditional filter bag keel is the same as that of the filter bag, the support ring is completely attached to the inner surface of the filter bag, and the traditional circular keel uses a circular steel ring or a star-shaped steel ring as the support ring to support longitudinal support steel bars in the current market. The keel structure has the advantages that the contact area between the support ring and the filter bag is large, the filter bag vibrates along with the injection of gas in the working process, and the filter bag is easy to be worn by the support ring and is locally broken; at the same time, the support strength and toughness are relatively weak.

There are prior art that consider the problem of wear on the filter bag, for example, chinese patent application No.: CN201521058989.8, the utility model patent application of 2016 year 8 month 17 days discloses a dust removal sack's skeleton texture, comprises a plurality of steel wires, two upper and lower steel wire rings, hood and end cap, connects into a polygonal structure through two upper and lower steel wire rings between a plurality of steel wires, and the welding is respectively on hood and end cap on steel wire top and bottom. In the scheme, the steel wires are connected into the polygonal structure through the steel wire rings, so that the contact area of the framework and the cloth bag is reduced, the abrasion of the framework and the cloth bag is reduced, but the polygonal structure has relatively sharp vertexes, and the abrasion is still serious at each vertex, so that the effect of the polygonal structure is to be improved.

In addition, the keel of the bag-type dust collector is basically welded through a steel structure, the welding spot is the weakest part of the whole keel, and when the dust collector works, the welding spot falls off due to the fact that compressed air is blown to vibrate. The integrity of the keel cannot be influenced by the falling of individual welding points, but once the welding points on the support ring adopting the traditional annular welding structure fall off, the relatively sharp section can be propped against the filter bag due to the fact that the welding points are straightened outwards, the part where the welding points fall off on the support ring can be scraped with the inner surface of the filter bag when the injection is carried out, and the filter bag at the part can be damaged more easily.

Disclosure of Invention

1. Problems to be solved

The utility model provides a sack cleaner fossil fragments, its aim at solve the support ring that adopts annular or polygonal structure and the big or sharp-pointed summit of filter bag area of contact cause the problem of filter bag wearing and tearing easily. The utility model discloses a sack cleaner fossil fragments not only can effectively reduce the area of contact with the filter bag through optimizing support ring shape structure, improve filter bag operational environment, can also improve support intensity and elasticity, guarantee support stability.

Additionally, the utility model discloses a sack cleaner still further optimizes the support ring welding point position, and cooperation support ring shape structure even when the solder joint drops, also can not cause the influence to the filter bag basically.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A keel of a bag-type dust collector comprises a plurality of longitudinal supporting steel bars which are circularly arranged; the supporting rings are of annular structures, are in corrugated shapes bent alternately from inside to outside along the circumferential direction and are provided with a plurality of outer arc sections and a plurality of inner arc sections, and adjacent outer arc sections and inner arc sections are in tangent connection.

As a further improvement of the technical scheme, the support ring is formed by bending a steel bar, and two end points are welded and connected.

As a further improvement of the technical scheme, welding points of two end points of the support ring are positioned on the inner arc section.

As a further improvement of the technical scheme, each longitudinal supporting steel bar is connected with the outer side of the inner circular arc section of the supporting ring in a welding mode.

As a further improvement of the technical scheme, a venturi tube is arranged below the top cover.

As a further improvement of the technical scheme, a plurality of support rings are uniformly arranged along the length direction of the longitudinal support reinforcing steel bar.

As a further improvement of the technical scheme, the surface of the support ring and/or the longitudinal support steel bar is galvanized, sprayed with plastics or plated with organic silicon.

A bag-type dust collector comprises a keel and a filter bag sleeved on the keel, wherein the keel adopts any one of the bag-type dust collector keels in the scheme.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the fold-shaped structure of the support ring not only reduces the contact area between the support ring and the filter bag, but also reduces the abrasion to the filter bag because the contact surface is an arc section; and this fossil fragments have better support intensity and elasticity, even the welding point on the support ring of individuality vibrates and breaks off because of the jetting, because its elasticity, the position that drops of welding point can outwards be stretched straight to the welding point is located the interior circular segment of support ring, keeps away from the internal surface of filter bag, therefore the sharp-pointed section of the position that drops can not contact the internal surface of filter bag, thereby has further alleviateed the wearing and tearing to the filter bag, has protected the filter bag.

(2) The utility model discloses a fossil fragments adopt be the iron wire or the stainless steel wire that have enough intensity and rigidity to do processing such as zinc-plating, spray plastics or plating organic silicon on the surface, each skeleton that makes the manufacturing all is smooth, straight, and the project organization is hard, therefore can not lead to the fact wearing and tearing to the filter bag, but also can avoid rustting, conveniently changes filter bag, long service life.

(3) The utility model discloses well many longitudinal support reinforcing bars are circular arrangement to evenly arranged a plurality of support rings along the length direction of longitudinal support reinforcing bar, the structure symmetry is compact, and intensity is high.

(4) The utility model discloses a be provided with the venturi tube on keel frame's the top cap, when jetting, can be by the thickness to the air current for the gas flow rate, it is better to the effect of removing dust of filter bag, can the effectual life who improves the filter bag and the work efficiency of dust remover.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art bag-type dust collector;

FIG. 2 is a schematic view of the three-dimensional structure of the keel in the bag-type dust collector of the present invention;

fig. 3 is a schematic cross-sectional view of the bag-type dust collector of the present invention.

In the figure: 1. a support ring; 2. a welding point; 3. longitudinally supporting the reinforcing steel bars; 4. a filter bag; 5. a top cover; 6. a bottom plate, 7, an inner arc section; 8. an outer arc segment.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings.

Fig. 1 is a schematic cross-sectional view of a conventional bag-type dust collector, which includes a support ring 1, longitudinal support bars 3, a top cover 5 and a bottom plate 6.

Many vertical support bars 3 are circular arrangement, install top cap 5 in vertical support bar 3's one end, and other end mounting plate 6 evenly installs a plurality of support rings 1 along its length direction, constitutes keel frame, and filter bag 4 tightly overlaps in the fossil fragments outside. The support ring 1 is an annular structure formed by bending a steel bar and spot-welded at two ends.

It can be seen from above-mentioned structure that support ring 1 is the area of contact of ring shape and filter bag 4 great, and at the device jetting operation in-process, filter bag 4 can be frequent with support ring 1 contact, cause wearing and tearing, adopt welded structural style again after the reinforcing bar is buckled into the ring in addition, the support intensity of fossil fragments skeleton is not high relatively, can produce comparatively violent vibrations during the jetting, leads to the solder joint to drop easily. Once the welding point 2 of the support ring 1 falls off, the sharp section of the falling part is outwards stretched and straightened and directly props against the filter bag 4 due to the elasticity of the support ring, the inner surface of the filter bag 4 is scraped, the filter bag 4 is easily damaged, and the service life of the filter bag 4 is shortened.

Examples

In order to reduce the abrasion of the support ring 1 to the filter bag 4 and prolong the service life, the shape and structure of the support ring 1 in the keel are optimally designed on the basis of the existing bag-type dust remover.

As shown in fig. 2, the keel used in the bag-type dust collector is the same as that of the prior art, and is composed of a plurality of support rings 1, longitudinal support steel bars 3, a top cover 5 and a bottom plate 6, and the support rings 1 are also of an annular structure, but the support rings 1 are not circular rings, but are corrugated in a shape of being alternately bent in an inner circular arc shape and an outer circular arc shape along the circumferential direction, and are composed of a plurality of alternately connected inner circular arc sections 7 and outer circular arc sections 8, and adjacent inner circular arc sections 7 and outer circular arc sections 8 are in tangent connection, so that the circular arcs can be directly tangent, and straight line sections can be used for transition. A plurality of support rings 1 are evenly arranged along the length direction of the longitudinal support steel bars 3, and each longitudinal support steel bar 3 is welded and connected with the outer side of the inner arc section 7 of the support ring 1, so that the structure is symmetrical and compact, and the strength is high.

According to the bag-type dust collector keel structure provided by the embodiment, the fold-shaped structure of the support ring 1 is less in contact area with the filter bag 4 compared with an annular support ring, so that the abrasion to the filter bag 4 is reduced, and the part of the support ring 1 in contact with the filter bag 4 is a smooth outer circular arc section 8, so that no sharp vertex exists compared with a polygonal support ring, and the abrasion to the filter bag 4 can be better reduced.

It should be particularly noted that the support ring 1 in the corrugated shape is also formed by welding two ends of a bent steel bar, but the corrugated structure has better force dispersion effect through mechanical analysis, has higher support strength, and can bear higher pressure, so that the support stability can be ensured, meanwhile, the length of the steel bar required by the support ring 1 in the corrugated shape is longer than that of a circular shape and a polygonal shape, the elasticity is better, and the elasticity is further increased after bending. More important, the welding point 2 at support ring 1 both ends sets up the midpoint department of inner circular arc section 7, on the one hand during the assembly not directly with the contact of filter bag 4, on the other hand, even shake in the work and drop, because the fold structure, the outside elasticity of the 1 weld bead department of support ring is collapsed the range of opening and is minimum, also can not contact with filter bag 4, just also can not cause the influence to filter bag 4 basically, compares current ring shape or polygonal structure, 4 operational environment of filter bag are improved greatly, increase of service life.

Because filter bag 4 tightly overlaps in the fossil fragments outside, direct and fossil fragments contact, for preventing that fossil fragments surface is not smooth, cause wearing and tearing to filter bag 4, therefore need do treatments such as zinc-plating, plastic-blasting or plating organosilicon on the surface of fossil fragments, each fossil fragments skeleton that makes is all smooth, straight to can not cause wearing and tearing to filter bag 4, but also can avoid rustting and filter bag 4 adhesion, conveniently change filter bag 4, increase of service life.

In order to better prolong the service life of the filter bag 4, the top cover 5 is also provided with the venturi tube, when the filter bag 4 is subjected to blowing and ash removal, the venturi tube can reduce the airflow from thick to thin, so that the gas flow rate is accelerated, the filter bag 4 can be rapidly expanded and shaken, the dust adsorbed on the filter bag 4 can be effectively removed, and the service life of the filter bag 4 and the working efficiency of a dust remover can be effectively prolonged.

The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims

1. A keel of a bag-type dust collector comprises a plurality of longitudinal supporting steel bars (3) which are circularly arranged; one end installation top cap (5) of a plurality of vertical supporting steel bars (3), other end mounting plate (6), along a plurality of support rings of its length direction interval installation (1), its characterized in that: the support ring (1) is of an annular structure, is of a corrugated shape which is formed by bending inner circular arc and outer circular arc alternately along the circumferential direction, and is provided with a plurality of inner circular arc sections (7) and a plurality of outer circular arc sections (8), and the adjacent inner circular arc sections (7) and the outer circular arc sections (8) are in tangent connection.

2. The keel of a bag-type dust collector according to claim 1, wherein: the support ring (1) is formed by bending a steel bar, and two end points are welded and connected.

3. The keel of a bag-type dust collector according to claim 2, wherein: the welding points (2) of the two end points of the support ring (1) are positioned on the inner arc section (7).

4. The keel of a bag-type dust collector according to claim 2, wherein: each longitudinal supporting steel bar (3) is welded and connected with the outer side of the inner arc section (7) of the supporting ring (1).

5. The bag-type dust collector keel according to any one of claims 1-4, wherein: a venturi is arranged below the top cover (5).

6. The bag-type dust collector keel according to any one of claims 1-4, wherein: the support rings (1) are uniformly arranged along the length direction of the longitudinal support steel bar (3).

7. The bag-type dust collector keel according to any one of claims 1-4, wherein: the surface of the support ring (1) and/or the longitudinal support steel bar (3) is galvanized, plastic-sprayed or organosilicon-plated.

8. The utility model provides a sack cleaner, includes fossil fragments and cover filter bag (4) on fossil fragments, its characterized in that: the keel is the keel of the bag-type dust collector in any one of claims 1-7.